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Creep mechanisms and cavitation of AA5052 at intermediate stress and temperature region
Abedi, F.
- DOI:10.1177/02670836241235827
- Main Entry: Abedi, F.
- Title:Creep mechanisms and cavitation of AA5052 at intermediate stress and temperature region.
- Publisher:2024.
- Abstract:Creep mechanism and cavitation of AA5052 were studied employing creep experiments at 200–350°C and stresses 15–70 MPa. The microstructural observations were then performed to assess grain growth and formation of cavities. The apparent activation energy was defined in a range of 154–166 kJ/mole. It was found that at higher normalised stress region ((Formula presented.)), the stress exponent was about 7 and at lower stresses it decreased to about 5. Microstructural instability, that is, grain growth, was detected during creep at a temperature of 300°C or higher. This phenomenon affected the strain rate and the governing mechanisms. Microstructure of the sample tested at 300°C revealed that the coalescence of cavities could occur at creep strains higher than 6.5%. © The Author(s) 2024
- Notes:Sharif Repository
- Subject:Activation energy.
- Subject:Cavitation.
- Subject:Creep.
- Subject:Magnesium alloys.
- Subject:Strain rate.
- Subject:Aluminum - magnesium alloys.
- Subject:Apparent activation energy.
- Subject:Creep cavitation.
- Subject:Creep experiments.
- Subject:Creep mechanism.
- Subject:Intermediate stress.
- Subject:Intermediate temperatures.
- Subject:Micro-structural observations.
- Subject:Stress exponents.
- Subject:Temperature regions.
- Subject:Grain growth.
- Added Entry:Serajzadeh, S.
- Added Entry:Sharif University of Technology.
- Source: Materials Science and Technology (United Kingdom) ; Volume 40, Issue 13 , 2024 , Pages 998-1014 ; 02670836 (ISSN)
- Web Site:https://journals.sagepub.com/doi/10.1177/02670836241235827
